8.12 Additional Adjustment Functions
8.12.4 Current Control Mode Selection
8
T
uning
8-73
8.12.4
Current Control Mode Selection
Current control mode selection reduces high-frequency noise while the Servomotor is being
stopped.
The setting depends on the capacity of the SERVOPACK.
To use current control mode selection, use current control mode 2 (set Pn009 to n.
1
or
n.
2
).
•
SERVOPACK Models SGD7S-R70A, -R90A, -1R6A, -2R8A, -3R8A, -5R5A, and -7R6A
•
SERVOPACK Models SGD7S-120A, -180A, -200A, -330A, -470A, -550A, -590A, and -780A
8.12.5
Current Gain Level Setting
You can set the current gain level to reduce noise by adjusting the parameter for current control
inside the SERVOPACK according to the speed loop gain (Pn100). The noise level can be
reduced by decreasing the current gain level (Pn13D) from its default setting of 2,000% (dis-
abled). However, if the setting is decreased, the level of noise will be lowered, but the response
characteristic of the SERVOPACK will also be reduced. Adjust the current gain level within the
range that maintains the SERVOPACK response characteristic. This function is always disabled
during torque control (Pn000 = n.
2
).
Parameter
Meaning
When Enabled
Classification
Pn009
n.
0
Use current control mode 1.
After restart
Tuning
n.
1
(default setting)
n.
2
Use current control mode 2 (low noise).
Parameter
Meaning
When Enabled
Classification
Pn009
n.
0
Use current control mode 1.
After restart
Tuning
n.
1
(default setting)
Use current control mode 2 (low noise).
n.
2
If current control mode 2 is selected, the load ratio may increase while the Servomotor is being
stopped.
Important
Pn13D
Current Gain Level
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
100 to 2,000
1%
2,000
Immediately
Tuning
If the current gain level is changed, the response characteristic of the speed loop will also
change. Servo tuning must therefore be performed again.
Speed
Position
Important
